21225166

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7867}}^1$

素因数の和:7959

約数の個数: 16

約数和(自身を含む): 33989760

約数和(自身を除く): 12764594

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7867, 15734, 149473, 298946, 558557, 1117114, 10612583, 21225166]

約数ペア:

[(1, 21225166), (2, 10612583), (19, 1117114), (38, 558557), (71, 298946), (142, 149473), (1349, 15734), (2698, 7867)]